A marine culture tool ship

By designing pontoons and water-dividing structures on marine aquaculture vessels, concealing the propeller, using a slant-shaft piston motor for drive, and filling the hull with flame-retardant foam material, the problems of low safety performance, high resistance, and poor stability in existing technologies have been solved, achieving a high safety and low resistance navigation effect.

CN224375868UActive Publication Date: 2026-06-19WEI HAI XI TE CHUAN BO XIU ZAO YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEI HAI XI TE CHUAN BO XIU ZAO YOU XIAN GONG SI
Filing Date
2025-05-14
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing marine aquaculture vessels have low safety performance, are easily entangled by marine life, have high navigation resistance, poor stability, and pose a risk of sinking.

Method used

It adopts a pontoon and water-dividing blade structure, hides the propeller, uses a slant-shaft piston motor for drive, fills the hull with flame-retardant foam material, designs an inverted triangular water-dividing blade to reduce resistance, and has a support frame and guide roller system to facilitate rope operation.

Benefits of technology

It improves the safety and stability of ships, reduces sailing resistance, prevents propeller entanglement, and enhances operational convenience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224375868U_ABST
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Abstract

This utility model relates to the field of aquaculture vessel technology, specifically a marine aquaculture tool vessel. It has a hull, and its characteristic is that floats are installed on the left and right sides of the bottom of the hull, and a drive chamber with a rear end opening is provided on the rear side of the float. A propeller is installed in the drive chamber via a bracket. A water inlet is provided on the side wall of the drive chamber near the front of the propeller and close to the inner side of the hull. The propeller is connected to the output end of the driver. It has the advantages of simple structure, low resistance, high safety performance, high stability, and the propeller is not easy to get tangled.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture vessel technology, specifically a marine aquaculture tool vessel with simple structure, low resistance, high safety performance, high stability, and propeller that is not easily entangled. Background Technology

[0002] In recent years, with the continuous improvement of people's living standards, the demand for seafood and aquaculture products has been increasing. As a result, both marine and freshwater aquaculture industries have developed rapidly, with continuous progress in aquaculture categories and technologies, leading to unprecedented increases in yield and variety. However, while aquaculture professionals have focused primarily on expanding the scope, types, and methods of aquaculture, the transportation tools used for aquaculture remain outdated vessels. This significantly hinders the overall development of the aquaculture industry and presents safety issues, including low safety levels, susceptibility to water ingress, and frequent shipwrecks in aquaculture areas, resulting in casualties and property damage. This is particularly true for cage-cultured shellfish, where seedling ropes are typically connected to cages via ropes, with the vessel positioned on two ropes and manual operation on the side of the vessel, leading to poor stability and low safety performance. Moreover, the power of the vessels used for aquaculture is usually located at the stern, and the vessels are driven by a power drive. However, the propeller of the power drive at the stern is exposed on the outside. Due to the abundance of seaweed and other marine organisms in the marine aquaculture area, the propeller is easily entangled, which affects the navigation of the vessel, reduces its operational safety, and increases the resistance of the vessel. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a marine aquaculture vessel with a simple structure, low resistance, high safety performance, high stability, and a propeller that is not easily entangled.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A marine aquaculture vessel is provided with a hull, characterized in that floats are installed on the left and right sides of the bottom of the hull, a drive chamber with a rear opening is provided on the rear side of the floats, a propeller is installed in the drive chamber via a bracket, a water inlet is provided on the side wall of the drive chamber near the front of the propeller and close to the inner side of the hull, and the propeller is connected to the output end of the drive.

[0006] The bottom of the hull between the pontoons of this invention is designed with an inwardly concave arc shape, and a water-dividing blade is connected at the middle position of the bottom of the hull, which is arranged along the front and rear direction of the hull. The water-dividing blade reduces the resistance of the ship's navigation.

[0007] The cross-section of the water-dividing blade described in this invention is an inverted triangle, which ensures the water-dividing effect and further reduces the resistance of ship navigation.

[0008] The driver described in this utility model is a slant-shaft piston motor. The output end of the slant-shaft piston motor is connected to the propeller. The slant-shaft piston motor is connected to the oil pump via an oil pipe, and the oil pump outputs power to the slant-shaft piston motor.

[0009] The float described in this utility model is a PE pipe with a thickness of 3-4 cm.

[0010] The water inlet of this invention is inclined toward the direction of the ship's travel, resulting in low water intake resistance.

[0011] The bottom of the water-dividing blade described in this invention is higher than the bottom of the buoy, thereby hiding the water-dividing blade inside the bottom of the hull and reducing resistance.

[0012] The hull and buoys of this invention are filled with flame-retardant foam to ensure the safety performance of the ship.

[0013] After the hull and pontoons of this invention are placed in seawater, the pontoons are located below the water surface, ensuring that the water inlet of the pontoons is below the water surface.

[0014] The upper surface of the hull of this utility model is square. The front end of the square hull is provided with an inlet. A support frame is installed on the hull at the inlet position. The front end of the support frame is rotatably connected to a rope guide roller. The rear end of the support frame is hinged to the hull via a hinge shaft. A telescopic cylinder is provided on the side of the support frame. The output end of the telescopic cylinder is hinged to the side wall of the support frame. The cylinder seat of the telescopic cylinder is hinged to the hull. A support guide roller is arranged in the middle of the upper surface of the hull towards the rear edge of the hull. The support guide roller includes a bracket and a guide roller. The lower end of the bracket is connected to the upper surface of the hull, and the upper end of the bracket is rotatably connected to the guide roller. A rope guide roller is installed on the hull at the rear edge of the hull via a hinge shaft.

[0015] This invention, due to the above-mentioned structure, has the advantages of simple structure, low resistance, high safety performance, high stability, and propeller is not easily entangled. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 The left view.

[0018] Figure 3 yes Figure 1 A bottom view.

[0019] Figure 4 This is a partial schematic diagram of the rope guide roller, guide roller, and rope discharge roller on the upper surface of the hull.

[0020] Figure 5 yes Figure 4 A top-down view of the distribution of the rope inlet roller, guide roller, and rope outlet roller. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] As shown in the attached figure, a marine aquaculture vessel is provided with a hull 1. The hull 1 is characterized in that floats 2 are installed on the left and right sides of the bottom of the hull 1 respectively. The rear side of the float 2 is provided with a drive chamber 3 with a rear end opening. A propeller 4 is installed in the drive chamber 3 via a bracket. A water inlet 5 is provided on the side wall of the drive chamber 3 near the inner side of the hull 1 on the front side of the propeller 4. The propeller 4 is connected to the output end of the driver.

[0023] Furthermore, the bottom of the hull 1 between the pontoons 2 is designed with a concave arc-shaped structure, and a water-dividing blade 6 is connected to the middle position of the bottom of the hull 1 along the front and rear direction of the hull 1, thereby reducing the resistance of the ship's navigation.

[0024] As the water inlet is located on the inner side of the hull between the two pontoons, during the ship's navigation, the water divider splits the seawater, and the split seawater enters the cavities between the two sides of the water divider and the pontoons. At the same time, the seawater is squeezed and flows backward in the cavities between the pontoons and the water divider, further squeezing into the water inlet, increasing the ship's forward propulsion and reducing resistance.

[0025] Furthermore, the cross-section of the water-dividing blade 6 is an inverted triangle, which ensures the water-dividing effect and further reduces the ship's navigation resistance.

[0026] Furthermore, the drive is a slant piston motor 7, the output end of which is connected to the propeller 4. The slant piston motor 7 is connected to the oil pump 8 via an oil pipe, and the oil pump 8 outputs power to the slant piston motor 7.

[0027] Furthermore, the float 2 is a PE pipe with a thickness of 3-4 cm.

[0028] Furthermore, the water inlet 5 is inclined toward the direction of the ship's travel, resulting in low water resistance.

[0029] Furthermore, the bottom of the water-dividing blade 6 is higher than the bottom of the buoy 2, thereby hiding the water-dividing blade 6 inside the bottom of the hull 1 and reducing resistance.

[0030] Furthermore, the hull 1 and the buoy 2 are filled with flame-retardant foam to ensure the safety performance of the ship.

[0031] Furthermore, after the hull 1 and the pontoon 2 are placed in seawater, the pontoon 2 is located below the water surface, ensuring that the water inlet 5 of the pontoon 2 is located below the water surface.

[0032] Furthermore, the upper surface of the hull 1 is square, and the front end of the square hull 1 is provided with an inlet 9. A support frame 10 is installed on the hull 1 at the inlet 9. The front end of the support frame 10 is rotatably connected to a rope guide roller 11. The rear end of the support frame 10 is hinged to the hull 1 via a hinge shaft. A telescopic cylinder 12 is provided on the side of the support frame 10. The output end of the telescopic cylinder 12 is hinged to the side wall of the support frame 10. The cylinder seat of the telescopic cylinder 12 is hinged to the hull 1. A support guide roller is arranged in the middle of the upper surface of the hull 1 towards the rear edge of the hull. The support guide roller includes a bracket 13 and a guide roller 14. The lower end of the bracket 13 is connected to the upper surface of the hull 1, and the upper end of the bracket 13 is rotatably connected to the guide roller 14. A rope guide roller 15 is installed on the hull 1 at the rear edge of the hull via a hinge shaft.

[0033] The rope guide roller 11 described above is an existing structure that can move the rope while avoiding the seedling rope. The specific structure is existing technology and will not be described in detail here. The rope guide roller 15 is a cylindrical roller with a waist-shaped roller surface. The height of the bracket 13 in the support guide roller 14 arranged along the middle of the upper end face of the hull 1 towards the rear edge of the hull gradually decreases to ensure that the operator can operate conveniently on the upper end face of the hull 1.

[0034] In use, the vessel is placed in seawater with the buoy 2 below the water surface. The slant-shaft piston motor 7 is activated, and the propeller 4 rotates. Water enters through the inlet 5 on the side of the buoy 2 and exits through the outlet at the rear, thus propelling the entire hull 1 forward. Because of the cooperation between the slant-shaft piston motor 7 and the propeller 4, the propeller 4 is concealed inside the buoy 2, preventing it from contacting the external environment and thus avoiding entanglement with marine life. Furthermore, the buoy 2 is made of PE pipe, making it difficult for marine organisms to attach and grow, and it is also resistant to seawater corrosion. In particular, the water-dividing blade 6 installed at the bottom of the vessel reduces drag during movement. Moreover, the vessel's interior is filled with flame-retardant foam, ensuring high safety. During the disassembly and installation of the aquaculture cages, the first step is to... The ropes are arranged at the front end of the support frame 10, the guide roller 11, the guide roller 14 on the upper surface of the hull 1, and finally led out through the rope exit roller 15. Then, the telescopic cylinder 12 at the front of the ship is opened, and the support frame 10 is lifted through the output end of the telescopic cylinder 12, thereby lifting the ropes. As the ship moves forward, the ropes move on the ship, and the breeding cages are lifted by the rope guide roller 11. The seedling ropes connected to the breeding cages on the ropes pass over the rope guide rollers and enter the upper part of the hull 1. The workers can cut the seedling ropes to unload the breeding cages. At the same time, the workers can also tie empty breeding cages with seedling ropes. The perforated breeding cages are moved out of the side of the hull 1 through the cylindrical rollers on the waist-shaped surface. Due to the above structure, this utility model has the advantages of simple structure, low resistance, high safety performance, high stability, and the propeller 4 is not easy to get tangled.

Claims

1. A marine aquaculture vessel, comprising a hull, characterized in that... Floats are installed on the left and right sides of the bottom of the hull. A drive chamber with a rear end opening is provided on the rear side of the float. A propeller is installed in the drive chamber via a bracket. A water inlet is provided on the side wall of the drive chamber near the inner side of the hull and in front of the propeller. The propeller is connected to the output end of the drive. A water divider is connected to the middle position of the bottom of the hull along the front and rear direction of the hull.

2. A marine aquaculture vessel according to claim 1, characterized in that... The bottom of the hull between the pontoons is designed with an inwardly concave arc-shaped structure.

3. A marine aquaculture vessel according to claim 1, characterized in that... The water-dividing blade has an inverted triangular cross-section to ensure effective water separation and further reduce ship navigation resistance.

4. A marine aquaculture vessel according to claim 1, characterized in that... The drive is a slant-shaft piston motor. The output end of the slant-shaft piston motor is connected to the propeller. The slant-shaft piston motor is connected to the oil pump via an oil pipe, and the oil pump outputs power to the slant-shaft piston motor.

5. A marine aquaculture vessel according to claim 1, characterized in that... The pontoon is made of PE pipe, and the thickness of the PE pipe is 3-4cm.

6. A marine aquaculture vessel according to claim 1, characterized in that... The water inlet is tilted towards the direction of the ship's travel, resulting in low water resistance.

7. A marine aquaculture vessel according to claim 1, characterized in that... The bottom of the water-dividing blade is higher than the bottom of the buoy, thus hiding the water-dividing blade inside the bottom of the hull and reducing resistance.

8. A marine aquaculture vessel according to claim 1, characterized in that... The hull and buoys are filled with flame-retardant foam to ensure the safety performance of the ship.

9. A marine aquaculture vessel according to claim 1, characterized in that... After the hull and pontoons are placed in seawater, the pontoons are below the water surface, ensuring that the water inlet of the pontoons is below the water surface.

10. A marine aquaculture vessel according to claim 1, characterized in that... The upper surface of the hull is square, and the front end of the square hull is provided with an inlet. A support frame is installed on the hull at the inlet position. The front end of the support frame is rotatably connected to a rope guide roller. The rear end of the support frame is hinged to the hull via a hinge shaft. A telescopic cylinder is provided on the side of the support frame. The output end of the telescopic cylinder is hinged to the side wall of the support frame. The cylinder seat of the telescopic cylinder is hinged to the hull. A support guide roller is arranged in the middle of the upper surface of the hull towards the rear edge of the hull. The support guide roller includes a bracket and a guide roller. The lower end of the bracket is connected to the upper surface of the hull, and the upper end of the bracket is rotatably connected to the guide roller. A rope guide roller is installed on the hull at the rear edge of the hull via a hinge shaft.